Stroke and Amyloid-β Downregulate TREM-2 and Uch-L1 Expression that Synergistically Promote the Inflammatory Response

Autor: Michela Guglielmotto, Valeria Vasciaveo, Debora Monteleone, Claudio Franchino, Massimo Tabaton, Elena Tamagno, Sara Rinaldi, Ivan Enrico Repetto
Rok vydání: 2019
Předmět:
0301 basic medicine
Male
microglia
neuroinflammation
Brain Ischemia
Pathogenesis
Mice
0302 clinical medicine
TREM2
Aspartic Acid Endopeptidases
alzheimers-disease
Receptors
Immunologic

Alzheimer's disease
NF-kB pathway
stroke
Uch-L1
Cells
Cultured

Aged
80 and over

Neurons
Membrane Glycoproteins
General Neuroscience
Alzheimer’s disease
NF-kappa B
General Medicine
Stroke
Psychiatry and Mental health
Clinical Psychology
alzheimer's disease
Cytokines
Female
terminal hydrolase l1
medicine.symptom
Ubiquitin Thiolesterase
Down-Regulation
Inflammation
03 medical and health sciences
Downregulation and upregulation
In vivo
nf-kappa-b
medicine
Animals
Humans
oligomers
gene
Transcription factor
mouse
Neuroinflammation
Aged
model
Amyloid beta-Peptides
business.industry
In vitro
Peptide Fragments
proteasome
030104 developmental biology
Cancer research
Geriatrics and Gerontology
Amyloid Precursor Protein Secretases
business
030217 neurology & neurosurgery
Zdroj: Journal of Alzheimer's disease : JAD. 71(3)
ISSN: 1875-8908
Popis: Neuroinflammation is involved in the pathogenesis of Alzheimer's disease, and the transcription factor NF-kappa B is a player in this event. We found here that the ischemic damage alone or in association with A beta(1-42) activates the NF-kappa B pathway, induces an increase of BACE1 and a parallel inhibition of Uch-L1 and TREM2, both in vitro and in vivo, in Tg 5XFAD and in human brains of sporadic AD. This mechanism creates a synergistic loop that fosters inflammation. We also demonstrated a significant protection exerted by the restoration of Uch-L1 activity. The rescue of the enzyme is able to abolish the decrease of TREM2 and the parameters of neuroinflammation.
Databáze: OpenAIRE